vs
9.3Noise control & calls9.3
7.1Battery6.1
Why is Sleep A30 better than Buds 4 Pro?
- Charging time1.5 h vs 4 h2.7×
- Total with charging case45 h vs 36 h+25%
Why is Buds 4 Pro better than Sleep A30?
Buds 4 Pro has no measurable advantages in this pair.
Specifications
Side by side
| Sound | ||
| Fit | In-ear | In-ear |
| Ear cup design | Closed-back | Closed-back |
| Driver type | Dynamic | Dynamic |
| Driver size | 4.6 mm | — |
| Lowest frequency | 20 Hz | — |
| Highest frequency | 20,000 Hz | — |
| Impedance | 14 Ω | — |
| Noise control | ||
| Active noise cancelling | Yes | Yes |
| Battery & charging | ||
| Battery life | 9 h | 9 h |
| Battery life with ANC | 6 h | — |
| Total with charging case | 45 h | 36 h |
| Charging time | 1.5 h | 4 h |
| Connectivity | ||
| Wireless | Yes | Yes |
| Bluetooth version | 5.4 | 5.3 |
| Bluetooth codecs | AAC, SBC | — |
| Hi-res codec (LDAC / aptX HD / LHDC) | No | — |
| aptX | No | — |
| LDAC | No | — |
| USB-C | Yes | — |
| Smart & streaming | ||
| Companion app | Yes | — |
| Design & build | ||
| Earbud weight (each) | 3 g | — |
| Protection rating | IPX4 | — |
| Water resistance (IPx) | IPx4 | IPx4 |
| Colours | Mist Lilac Special, Lunar White Special, Moonlit White, Mist Green | — |
| Features | ||
| Touch controls | Yes | Yes |
| Hands-free calls | Yes | Yes |
